BIOLOGY QUESTION! 10 pointss! Protein synthesis?

BIOLOGY QUESTION! 10 pointss! Protein synthesis? Topic: Blocks synthesis of proteins
June 20, 2019 / By Edana
Question: The sequence of DNA bases that controls the synthesis of a protein is A) A Chromosome B) An Amino Acid C) A Karyotype D) Polypeptide chain E) A Gene
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Best Answers: BIOLOGY QUESTION! 10 pointss! Protein synthesis?

Chantel Chantel | 4 days ago
I think Billy should take Honors Biology again, if he see's sequence of DNA and thinks amino acids, or at least to learn how to take his time reading the question. E) Definitely because a gene is a sequence of DNA that gives rise to the transcription of RNA which gives rise to the translation of protein from amino acids.
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Chantel Originally Answered: What are the steps of protein synthesis?
STEP 1: The first step in protein synthesis is the transcription of mRNA from a DNA gene in the nucleus. At some other prior time, the various other types of RNA have been synthesized using the appropriate DNA. The RNAs migrate from the nucleus into the cytoplasm. Prior to the beginning of the protein synthesis, all of the component parts are assembled in the ribosome. STEP 2: Initiation: In the cytoplasm, protein synthesis is actually initiated by the AUG codon on mRNA. The AUG codon signals both the interaction of the ribosome with m-RNA and also the tRNA with the anticodons (UAC). The tRNA which initiates the protein synthesis has N-formyl-methionine attached. The formyl group is really formic acid converted to an amide using the -NH2 group on methionine The next step is for a second tRNA to approach the mRNA (codon - CCG). This is the code for proline. The anticodon of the proline tRNA which reads this is GGC. The final process is to start growing peptide chain by having amine of proline to bond to the carboxyl acid group of methinone (met) in order to elongate the peptide. STEP 3: Elongation: Elongation of the peptide begins as various tRNA's read the next codon. When the correct match with the anticodons of a tRNA has been found, the tyrosine forms a peptide bond with the growing peptide chain . The proline is now hydrolyzed from the tRNA. The proline tRNA now moves away from the ribosome and back into the cytoplasm to reattach another proline amino acid. Step 4: Elongation and Termination: When the stop signal on mRNA is reached, the protein synthesis is terminated. The last amino acid is hydrolyzed from its t-RNA. The peptide chain leaves the ribosome. The N-formyl-methionine that was used to initiate the protein synthesis is also hydrolyzed from the completed peptide at this time. The ribosome is now ready to repeat the synthesis several more times. :) :)
Chantel Originally Answered: What are the steps of protein synthesis?
initiation: the messenger rna presents AUG to the transfer rna, who brings methionine. elongation: the codons on the messenger rna will code the anticodon on the transfer rna, which when the tRNA brings amino acids close together, peptidases will hook up the amino acids into a chain (the whole point of this process). termination: when the messengerRNA presents one of three stop codons (UUA etc) the tRNA won't recognize it, no amino acid is brought forward, and the process IS DONE LIKE DINNER. Peace out.

Anstice Anstice
i believe the answer is gene. A Gene is a relatively small segment of DNA that codes for the synthesis of a specific protein. cant be amino acid
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Zachariah Zachariah
I'd go E. Gene= sequence of bases, always codes for proteins. Amino Acid= monomer of proteins, does not control synthesis but is a part of it.
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Zachariah Originally Answered: Effects on protein synthesis, due to mutations in tRNA?
Protein synthesis will still occur in those cells. However, the tRNA will code for Asparagine (ASN) rather than Isoleucine (ILE). This could lead to an incorrect folding in the protein, which would then usually lead to the destruction of the protein by the cell. I hope this helps!

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